Seat



D. F. OLIVER.

SEAT. APPLICATION msn 11111.12, 1915. nznswan Aue. 15, 191e.

1,338,998. Patented Mar. 16, 1920.

2 SHEETS-s115511.

D. F. OLIVER.

SEAT.

APPLICATION F1150 1AN.12. 1915. RENEwr-:D Aue. 15. 1918.

1,333,998. Patented'mr. 16, 1920.

j 2 SHEETS-SHEET 2. ELE* Y i seance.

UNITED sTATEs PATENT oEErcE.

DOCTOR FRANKLIN OLIVER, OF OAKLAND, CALIFORNIA; LILLIE F. OLIVEREXECUTRIX OF SAD D. FRANKLIN OLIVER, IDECEASED.

Patented Mar. v1e, 1920.

Application led January 12, 1915, Serial No. 1,850. Renewed August 15,1918. Serial No. 250,076.

[o uit whom t muy concern.'

Be it known that l, DOCTOR F. OLivEE, a citizen of the United States,residing at Galland, in the county of Alameda and State of California,have invented new and useful linproveinents in Seats, of which Ythefollowing is a specification.

This invention relates to certain new and useful improvements vin seatsand pertains niore particularly toseats used in connection withautomobiles or other vehicles, bicycles and oflice chairs.

' The primary object of the invention is to provide an improved seatstructure in which.

Fig. 2 is a Fig. 1;

Fig. 8 is a section on the line 3 8 of Fig. 1;

Fig. 4 is a section on the line 4-4 of Fig. l;

Fig. 5 is al side elevation of the invention applied to a motor-cycle,cr bicycle;

Fig. 6 is an enlarged section taken on the line 9-9 of Fig. 5;

Fig. 7 is a fragmentary top plan view of an automobile showing seatsconstructed in accordance with the present inifention therein; and

Fig. 8 is a detail side elevaton of the member which is actuated uponwinding and unwinding of the spring.

ln proceeding in accordance with the present invention7 the floor 1 ofthe vehicle is provided with a longitudinal groove 2 in which is bothslidably and turnably received the head 3 of an upstanding bolt 4 thatthreadedly engages in a socket 5 formed in the lower closed end 6 of atubular pedestal or base standard 7. The standard 7 is preferablyprovided with a plurality of feet 8 which bear upon a plate 9appropriatelysecured to the floor 1 and which has a longitudinal slot 10that registers with the licor groove 2 so as to allow the bolt 4 toextend parts to be bodily shifted along the length v of the slot, or toenable the seats to be partially or completely rotated, as suggested inFig. 7. l f

The seat proper 12 has the flanged upper end 18 of a lsupporting tubularpost 14 rigidly connected thereto, which post telescopes within basestandard 7 and has 'longitudinal slots 15 into which screws 16 borne bystandard 7 project, the screw and slot connections prohibiting rotarymovement of the post 14 but not interfering with free verticalreciprocation thereof upon the post responding to irregular movements ofthe vehicle.

The post 14 is interiorly threaded at its upper endV for the purpose ofreceiving a turnable but normally rigid plug 17, which plug has a socket18 of angular cross-section, so as to not only receive a key-wrenchwhich may be introduced through an opening 19 vprovided for the purposein seat 12,

butto also conformablyreceivethe angular head 20 of a rod 21 whichserves to maintain regularity of the convolutions of a coil spring 22.

The coil spring 22 is utilized to resiliently support the seat 12 andhas its upper end rigidly connected to plug 17 and has its lower endsimilarly secured to a nut 23 having threads of approximately 3711i"pitch, which nut is engaged with the threads at the lower end of post14.

The nut 23 has a depending stem `24 which at its bottom is formed with aconeshaped socket 25 that receives a cone-pointed projection 26 formedon the closed end 6 of l standard 7 the stern 24 being formed hollow soas to slidaloly receive the rod 21.

The screws 16 also serve as stops to restrict the extent of relativeoutward movenient of the post 14 and standard 7, and assure engagementof the stem 24 of nut 28, with the bottoni 6 of standard 7.

In operation, the nut 17 is turned to effect winding of the spring 22 soas to place sainev under desired torsional tension, following which ascrew 27 is' operated to impinge against nut 17 to lock the latter so asto inaintain the spring with energy or power stored up therein. A

Upon the vehicle being' subjected to a jar or jolt, the downwardmovement of the seat is resisted by reason of compression of the springand torsion thereof which latter is Y caused by the post let that isthrust downwardly with the seat7 the spring torsion being effected byrotation of the nut 28.

Thus the downward movement of the sea-t is cushioned, first by reasonofthe compres sion of the coil springgrsecond, by torsion of thespring;and third by virtue of the friction which is set up by rotation of thenut '123, in and through the threads at the lower end of post 14: and bythe friction between socket and projection 26.

In Figs. 5 and 6 of the drawings, the,

aforementioned parts, where present, correspond to similarly designatedparts with the addition of prune marks to the reference numerals. Inthis adaptation of the invenelement,V a nut Vthreaded into engagementwith the lower end of said element and havingv a stein which abuts theadjacent end of the other element, and a tensioned coil ,spring rigidlyconnected to the ineinber and nut whereby upon compression of thespringthefnut will be turned by downward thrust of the first element totorsionally tension the spring.

2. In a seat support, a tubular standard, a tubular post slidable withinthe standard having a flange at the upper end to which the seat isfixed, and having vertical slots, screw pins xed in the standard andentering the slots to guide the post7 a plug fitting the upper end ofthe post, a rodv connected with the plug and extending downward in thepost a screw threaded nut turnable inthe lower end of the post and intowhich therod extends and a coil sei-ino` coni ressible between the plugand the nut.

3. A seat support of the character de-V scribed coinprising a tubularstandard, a seat supporting post guided and slidable in the standard, aVplug at the upper end of the post, a nut in the lower enc., a coilspring surrounded rod connected with the plug and slidable inthe nut, atubular extensionY from the bottoni of the nut having a cone-shapedsocket, and a cone projecting upward within the standard and engagingthe socket.

4. ln a seat support of the character described7 a tubular'standard, atubular post Vguided and slidable within the standard, a

turnable plug in the upper end of the post, a screw threaded nut in thelower end, a rod extending down from the plug and guided and slidable inthe nut7 a coiled spring ten'- y sionally fixed and surrounding the rodbetween the plug and nut, and locking means to retain the plug whenturned and control the torsional power of the spring.

In testimony whereof l have hereunto set my hand in presence of twosubscribing witnesses. v

DOCTOR FRANKLlN OLIVER.

TWitnesses z E. BOWEN,

SMITH.

